package com.appspot.eusms;

import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.ListView;

import com.actionbarsherlock.app.SherlockListFragment;
import com.appspot.eusms.database.DatabaseFactory;
import com.appspot.eusms.database.IdentityDatabase;
import com.appspot.eusms.database.loaders.IdentityLoader;

import com.appspot.eusms.R;

import org.whispersystems.textsecure.crypto.MasterSecret;

public class ReviewIdentitiesFragment extends SherlockListFragment
        implements LoaderManager.LoaderCallbacks<Cursor> {
    private MasterSecret masterSecret;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
        return inflater.inflate(R.layout.review_identities_fragment, container, false);
    }

    @Override
    public void onActivityCreated(Bundle bundle) {
        super.onActivityCreated(bundle);
        this.masterSecret = getSherlockActivity().getIntent().getParcelableExtra("master_secret");

        initializeListAdapter();
        getLoaderManager().initLoader(0, null, this);
    }

    @Override
    public void onListItemClick(ListView listView, View view, int position, long id) {
        Intent viewIntent = new Intent(getActivity(), ViewIdentityActivity.class);
        viewIntent.putExtra("identity_key", ((IdentityKeyView) view).getIdentityKey());
        viewIntent.putExtra("title", ((IdentityKeyView) view).getRecipient().toShortString() + " " +
                getString(R.string.ViewIdentityActivity_identity_fingerprint));
        startActivity(viewIntent);
    }

    private void initializeListAdapter() {
        this.setListAdapter(new IdentitiesListAdapter(getActivity(), null, masterSecret));
        getLoaderManager().restartLoader(0, null, this);
    }

    @Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        return new IdentityLoader(getActivity());
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
        ((CursorAdapter) getListAdapter()).changeCursor(cursor);
    }

    @Override
    public void onLoaderReset(Loader<Cursor> loader) {
        ((CursorAdapter) getListAdapter()).changeCursor(null);
    }

    private class IdentitiesListAdapter extends CursorAdapter {
        private final MasterSecret masterSecret;
        private final LayoutInflater inflater;

        public IdentitiesListAdapter(Context context, Cursor cursor, MasterSecret masterSecret) {
            super(context, cursor);
            this.masterSecret = masterSecret;
            this.inflater = LayoutInflater.from(context);
        }

        @Override
        public void bindView(View view, Context context, Cursor cursor) {
            IdentityDatabase.Reader reader = DatabaseFactory.getIdentityDatabase(context)
                    .readerFor(masterSecret, cursor);

            ((IdentityKeyView) view).set(reader.getCurrent());
        }

        @Override
        public View newView(Context context, Cursor cursor, ViewGroup parent) {
            return inflater.inflate(R.layout.identity_key_view, parent, false);
        }
    }
}